In Summer 2009, I taught at Holden Village, a Lutheran retreat in the mountains just east of Seattle, WA. I gave several presentations on nanoscience to general audiences. I have put pdf's of these presentations online here:
A Trip to the Nanoscale: a graphical introduction to the (tiny) world of the nanoscopic.
How to See Nano: a very incomplete list of some of the techniques that allow for study of the nanoworld.
What Makes Nano Special: a short list of some of the reasons nano is different than the macro.
Nano Examples: just a few examples of how nanomaterials have been used, or may be used, to create new technologies or to address long-standing problems.